Molten metal degassing device in casting process

Abstract

The utility model discloses a molten metal degassing device in a casting process, which belongs to the technical field of casting processing and comprises a base, the top of the base is fixedly connected with a processing barrel, the top of the processing barrel is provided with a barrel cover, and the top of the barrel cover is fixedly connected with a first motor. The top of the first motor is provided with an output gear through an output shaft, and the output gear is externally connected with a transmission gear in a toothed mode. According to the molten metal degassing device in the casting process, by arranging a first motor, an electric telescopic rod, a rotating seat and a filter screen, the electric telescopic rod can drive the rotating seat to move downwards, so that the rotating seat enters molten metal, scum floating on the molten metal is collected on one side of a baffle along with rotation of the rotating rod, and the rotating seat is driven to move upwards along with the electric telescopic rod; and the rotating seat enables the filter screen to filter and separate scum and molten metal, so that the scum can be quickly collected, subsequent operation for removing the scum is not needed, the operation time is saved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to foundry processing technical field, concretely is a kind of metal liquid degassing device in casting pouring process. BACKGROUND

[0002] Casting is a kind of manufacturing process that molten metal is poured into a mold, and solidified to form the required shape, in the production of metal liquid, metal is melted into metal liquid in the furnace at high temperature, metal liquid needs to be pretreated before pouring into die casting mold, the pretreatment of metal liquid includes degassing of metal liquid, in the process of degassing, if hydrogen or other impurity gas is contained in metal liquid, it will seriously affect the physical properties, mechanical properties and performance of product, the casting mixed with impurities will form pores, causing the casting to be loose, the existing technical means is usually to remove the gas bubbles in the metal liquid by degassing device, when the existing metal liquid degassing device is used, inert gas rises, hydrogen and non-metallic dregs in the removed metal liquid, these dregs will float on the surface of metal liquid, and finally removed by manual way, manual removal of dregs needs operator to operate multiple times, increase the labor burden of operator. SUMMARY

[0003] In order to overcome the above defects, the utility model provides a kind of metal liquid degassing device in casting pouring process, solve the problem that inert gas rises after the use of metal liquid degassing device, hydrogen and non-metallic dregs in the removed metal liquid, these dregs will float on the surface of metal liquid, finally removed by manual way, manual removal of dregs needs operator to operate multiple times, increase the labor burden of operator.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of metal liquid degassing device in casting pouring process, including base, the base top is fixedly connected with processing bucket, the processing bucket top is provided with bucket cover, the bucket cover top is fixedly connected with first motor, the first motor top is provided with output gear through output shaft, the output gear is toothed with transmission gear, the transmission gear bottom is fixedly connected with rotating rod, the rotating rod is rotatably connected with bucket cover, the rotating rod is externally provided with sliding slot, the transmission gear top is provided with electric telescopic handle, the electric telescopic handle bottom is provided with rotating seat passing through transmission gear, the rotating seat is slidably connected with sliding slot, the rotating seat top is fixedly connected with two baffles, the rotating seat inner wall is provided with two filter screens, the rotating seat inner wall is symmetrically provided with through groove on the two sides of filter screen, the bucket cover top is provided with gas outlet net.

[0005] As a further scheme of the utility model: the rotating rod bottom is fixedly connected with rotating disc, the rotating disc top is provided with a plurality of through holes, the rotating disc bottom is installed with stirring seat.

[0006] As a further embodiment of this utility model: an air inlet pipe is installed at the bottom of the processing barrel, and a flow divider is provided at one end of the air inlet pipe through the processing barrel.

[0007] As a further embodiment of this utility model: several air outlet pipes are installed on the top of the flow divider, and a material outlet pipe is provided at the bottom of the processing barrel.

[0008] As a further embodiment of this utility model: a second motor is installed on the top of the base, and a lifting screw is installed on the top of the second motor through an output shaft. The lifting screw is externally threaded to a lifting seat, and a connecting plate is installed on the top of the lifting seat. The connecting plate is fixedly connected to the bucket lid, and a top plate is rotatably connected to the top of the lifting screw.

[0009] As a further embodiment of this utility model: two limiting slide rods are fixedly connected to the top of the base, the limiting slide rods are slidably connected to the lifting seat, and the limiting slide rods are fixedly connected to the top plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This metal molten gas degassing device for casting and pouring comprises a first motor, an electric telescopic rod, a rotating seat, and a filter screen. The first motor drives an output gear via its output shaft, which in turn meshes with a transmission gear to rotate a rotating rod. This rotating rod simultaneously drives a diverter seat and a rotating seat to rotate. The electric telescopic rod moves the rotating seat downwards, allowing it to enter the molten metal. As the rotating rod rotates, it collects floating slag on the surface of the molten metal onto one side of a baffle. As the electric telescopic rod moves the rotating seat upwards, the filter screen allows the slag to be filtered and separated from the molten metal, achieving rapid slag collection without the need for subsequent slag removal, saving operation time and improving work efficiency.

[0012] 2. The metal molten gas degassing device in this casting process is equipped with a second motor, a lifting screw, a connecting plate, and a barrel lid. The second motor drives the lifting screw to rotate through its output shaft, so that the lifting screw can drive the connecting plate to move up and down through the lifting seat. In turn, the connecting plate can drive the barrel lid to move up and down together, which facilitates the barrel lid to drive the rotating rod into the processing barrel for processing, thus improving the practicality of the device. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0014] Fig. 2 This is a schematic cross-sectional view of the processing barrel and barrel lid of this utility model;

[0015] Fig. 3 This is a cross-sectional structural diagram of the base and the second motor of this utility model;

[0016] In the figure: 1, base; 2, processing barrel; 3, barrel cover; 4, first motor; 5, output gear; 6, transmission gear; 7, rotating rod; 8, chute; 9, electric telescopic rod; 10, rotating seat; 11, filter screen; 12, baffle; 13, rotating disc; 14, through hole; 15, stirring seat; 16, air inlet pipe; 17, shunt seat; 18, air outlet pipe; 19, discharge pipe; 20, second motor; 21, lifting lead screw; 22, lifting seat; 23, connecting plate; 24, limiting sliding rod; 25, air outlet net; 26, through slot; 27, top plate. DETAILED DESCRIPTION

[0017] The technical scheme of the patent will be further described in detail in combination with specific embodiments.

[0018] As Figs. 1-3 shown, the utility model provides a technical scheme: a metal liquid degassing device in casting pouring process, including base 1, base 1 top is equipped with second motor 20, and second motor 20 top is equipped with lifting lead screw 21 through output shaft, and lifting lead screw 21 outer thread is connected with lifting seat 22, and lifting seat 22 top is equipped with connecting plate 23, and connecting plate 23 is fixedly connected with barrel cover 3, and lifting lead screw 21 top is rotatably connected with top plate 27, by setting lifting seat 22, lifting lead screw 21 can control connecting plate 23 up and down movement through lifting seat 22, to let connecting plate 23 drive barrel cover 3 up and down movement, make barrel cover 3 can drive rotating rod 7 into metal liquid and carry out degassing processing;

[0019] Base 1 top is fixedly connected with two limiting sliding rods 24, and limiting sliding rod 24 is slidably connected with lifting seat 22, and limiting sliding rod 24 is fixedly connected with top plate 27, by setting limiting sliding rod 24, when second motor 20 drives lifting seat 22 up and down movement, lifting seat 22 slides on the surface of limiting sliding rod 24, so that limiting sliding rod 24 can limit lifting seat 22, so that lifting seat 22 can more stably drive barrel cover 3 to move;

[0020] Base 1 top is fixedly connected with processing barrel 2, and processing barrel 2 outer bottom is equipped with air inlet pipe 16, and air inlet pipe 16 one end passes through processing barrel 2 and is equipped with shunt seat 17, and shunt seat 17 top is equipped with several air outlet pipes 18, and processing barrel 2 outer bottom is provided with discharge pipe 19, by setting air inlet pipe 16, air inlet pipe 16 can import inert gas into shunt seat 17, so that inert gas enters metal liquid through the air outlet pipe 18 on shunt seat 17 and carries out degassing treatment to metal liquid;

[0021] The top of the processing barrel 2 is provided with a barrel cover 3, the top of the barrel cover 3 is fixedly connected with a first motor 4, the top of the first motor 4 is provided with an output gear 5 through an output shaft, the output gear 5 is toothedly connected with a transmission gear 6, the bottom of the transmission gear 6 is fixedly connected with a rotating rod 7, the rotating rod 7 is rotatably connected with the barrel cover 3, the bottom of the rotating rod 7 is fixedly connected with a rotating disc 13, a plurality of through holes 14 are formed in the top of the rotating disc 13, a stirring seat 15 is mounted on the bottom of the rotating disc 13, when the first motor 4 drives the transmission gear 6 to rotate through the output gear 5, the rotating rod 7 under the transmission gear 6 can drive the stirring seat 15 to rotate, so that the stirring seat 15 can stir the metal liquid and the inert gas, and the efficiency of the device for removing the gas from the metal liquid is improved;

[0022] A sliding groove 8 is formed in the outer side of the rotating rod 7, the top of the transmission gear 6 is provided with an electric telescopic rod 9, the bottom of the electric telescopic rod 9 is provided with a rotating seat 10 through the transmission gear 6, the rotating seat 10 is slidably connected with the sliding groove 8, the top of the rotating seat 10 is fixedly connected with two baffles 12, two filter screens 11 are arranged on the inner wall of the rotating seat 10, a through groove 26 is symmetrically arranged on the inner wall of the rotating seat 10 and located on the two sides of the filter screen 11, and the top of the barrel cover 3 is provided with a gas outlet screen 25, through the arrangement of the baffles 12, when the rotating seat 10 is driven to rotate by the rotating rod 7, the baffle 12 on the top of the rotating seat 10 can block the dross above the filter screen 11, and the subsequent filtering of the dross by the filter screen 11 is facilitated.

[0023] The working principle of the utility model is as follows:

[0024] In use, the metal liquid is poured into the processing barrel 2, the second motor 20 is started, the second motor 20 drives the lifting lead screw 21 to rotate through the output shaft, the lifting lead screw 21 drives the barrel cover 3 to move downwards through the connecting plate 23, the barrel cover 3 abuts against the top of the processing barrel 2, then the inert gas is introduced into the shunt seat 17 through the air inlet pipe 16, the inert gas enters the inside of the processing barrel 2 through the gas outlet pipe 18 on the shunt seat 17, the first motor 4 is started, the first motor 4 drives the output gear 5 to rotate through the output shaft, the output gear 5 drives the rotating rod 7 at the bottom of the transmission gear 6 to rotate through the tooth connection with the transmission gear 6, the rotating rod 7 drives the rotating disc 13 and the stirring seat 15 to stir the metal liquid, the metal liquid can be fully mixed with the inert gas for gas removal treatment, the gas in the metal liquid is discharged from the gas outlet screen 25, then the electric telescopic rod 9 is started, the electric telescopic rod 9 drives the rotating seat 10 to slide downwards in the through hole 14, the rotating seat 10 drives the filter screen 11 to enter the inside of the metal liquid, with the continuous rotation of the rotating rod 7, the rotating seat 10 drives the baffle 12 to block the dross above the filter screen 11, then after the gas removal treatment of the metal liquid is completed, the electric telescopic rod 9 is started, the electric telescopic rod 9 drives the rotating seat 10 to move upwards, the filter screen 11 on the rotating seat 10 filters the dross and the metal liquid, the dross is left on the filter screen 11, then the metal liquid is discharged from the discharge pipe 19 out of the processing barrel 2 and poured into a mold for casting forming.

[0025] In the description of the utility model, it needs to explain, unless another explicit stipulation and limit, term " install " " link " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electric connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element inside communication, for ordinary skilled person in the art, can understand the above-mentioned term in the utility model specific meaning through specific circumstances.

[0026] The above has made the detailed explanation to the preferred embodiment of the patent, but the patent is not limited to the above-mentioned embodiment, within the knowledge scope of ordinary skilled person in the art, still can make various changes without departing from the purpose of the patent.

Claims

1. A device for degassing liquid metal during a casting process, comprising a base (1), characterised in that: The base (1) top fixed connection has processing bucket (2), processing bucket (2) top is provided with bucket cover (3), the bucket cover (3) top fixed connection has first motor (4), the first motor (4) top is provided with output gear (5) through output shaft, the output gear (5) outer tooth is connected with transmission gear (6), the transmission gear (6) bottom fixed connection has rotary rod (7), the rotary rod (7) is rotatably connected with bucket cover (3), the rotary rod (7) outer is provided with chute (8), the transmission gear (6) top is provided with electric telescopic rod (9), the electric telescopic rod (9) bottom is provided with rotary seat (10) through transmission gear (6), the rotary seat (10) is slidably connected with chute (8), the rotary seat (10) top fixed connection has two baffle (12), the rotary seat (10) inner wall is provided with two filter screen (11), the rotary seat (10) inner wall is located on the both sides of filter screen (11) symmetry and is provided with through groove (26), the bucket cover (3) top is provided with air outlet net (25).

2. The device for removing gas from liquid metal according to claim 1, characterized in that: The rotary rod (7) bottom fixed connection has rotary disc (13), the rotary disc (13) top is provided with a plurality of through holes (14), the rotary disc (13) bottom is installed with stirring seat (15).

3. The device for removing gas from liquid metal according to claim 1, characterized in that: The processing bucket (2) outer bottom is installed with air inlet pipe (16), one end of air inlet pipe (16) is provided with shunt seat (17) through processing bucket (2).

4. The device according to claim 3, characterized in that: The shunt seat (17) top is installed with a plurality of air outlet pipe (18), the processing bucket (2) outer bottom is provided with discharge pipe (19).

5. The apparatus according to claim 1, wherein: the apparatus is used in a casting process. The base (1) top is installed with second motor (20), the second motor (20) top is installed with lifting lead screw (21) through output shaft, the lifting lead screw (21) is connected with lifting seat (22) outside screw thread, the lifting seat (22) top is installed with connecting plate (23), the connecting plate (23) is fixedly connected with bucket cover (3), the lifting lead screw (21) top rotatably connected with top plate (27).

6. A device for degassing liquid metal in a casting process according to claim 5, characterized in that: The base (1) top fixed connection has two limit sliding rods (24), the limit sliding rod (24) is slidably connected with lifting seat (22), the limit sliding rod (24) is fixedly connected with top plate (27).

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